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Finding the Fourth Proportional to 672,757.20, 928,393.04 and 366,836

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Solution

The fourth proportional to 672,757.20, 928,393.04 and 366,836 is: 506,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,757.20 : 928,393.04 = 366,836 : x
  2. Step 2: Convert to fraction form
    672,757.20/928,393.04 = 366,836/x
  3. Step 3: Cross multiply
    672,757.20x = 928,393.04 × 366,836
  4. Step 4: Simplify right side
    672,757.20x = 340,567,989,221.44
  5. Step 5: Solve for x
    x = 340,567,989,221.44/672,757.20
  6. Step 6: Final answer
    x = 506,227.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.